Home / 877,472.34-1,211,332.77-555,338.58

Finding the Fourth Proportional to 877,472.34, 1,211,332.77 and 555,338.58

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Solution

The fourth proportional to 877,472.34, 1,211,332.77 and 555,338.58 is: 766,633.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,472.34 : 1,211,332.77 = 555,338.58 : x
  2. Step 2: Convert to fraction form
    877,472.34/1,211,332.77 = 555,338.58/x
  3. Step 3: Cross multiply
    877,472.34x = 1,211,332.77 × 555,338.58
  4. Step 4: Simplify right side
    877,472.34x = 672,699,820,399.27
  5. Step 5: Solve for x
    x = 672,699,820,399.27/877,472.34
  6. Step 6: Final answer
    x = 766,633.65

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.